Display screen or a portion thereof with graphical user interface



The FIGURE is a front view of a display screen or a portion thereof with graphical user interface showing our new design.

The broken line drawing of the portion of the display screen and the text/words, and numbers shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 